Cluster colour-colour diagrams. Left: All clusters observed with ACAM. Middle: all clusters observed with GMOS. Right: CARLAJ2039-2514, observed with ISAAC. The continuous lines limit the regions that separate passive from active galaxies. Passive and active galaxies are shown in red and blue, respectively. ETGs are shown as circles. Disks and Irregular galaxies are shown as squares and diamonds, respectively. The cluster spectroscopic members show a yellow dot at the center. The RLQ and HzRG are shown as yellow stars and triangles, respectively, and have spectroscopic redshift even if we do not mark them with a dot. The other AGN have colours that are not included in the plots. The crosses on the upper left are the average colour errors.